COLLECTION AND TRANSPORT OF MICROBIOLOGY SPECIMENS

Correct specimen collection and transport of clinical specimens is extremely important for timely and accurate identification of clinically significant microorganisms from patient specimens.The following is a list of guidelines to use in the collection and transport of these specimens:

  1. Sterile transport systems will be used for all cultures (with the exception of stool cultures).When using the Culturette system reinsert the swabs to prevent drying of specimen.Never use expired transport devices or media.
  2. Specimen containers should have tight fitting lids to prevent leaking. The outside of the container must NOT be contaminated with the specimen.
  3. Two swabs will be submitted for a culture/gram stain.If only one swab is submitted, the gram stain will not be done.
  4. The specimen container should be labeled with the patient's first and last name, source of specimen, and date and time of collection.
  5. Transport specimens to the Lab as soon as possible.Specimens should be kept at room temperature after collection and during transport unless otherwise specified in the test instructions.
  6. Whenever possible, collect specimens prior to the administration of antibiotics.If a patient is on antibiotics when the specimen is collected, list the antibiotics on the culture request.
  7. Not all clinical specimens contain clinically significant microorganisms.Therefore, antimicrobial susceptibilities will be routinely performed only on appropriate isolates.

POWERCHART NAME

AFB CULTURE OTHER

MERCY TEST NAME

ACID FAST CLT/SMR*

MERCY LAB CODE

AFBCLT

Comment: 

Specify collection site on requisition.

Specimen: 

Submit each specimen in a sterile container with a tight fitting lid.

  • Body fluids:  Minimum of 5 ml specimen.
  • Bronchus washings/brushings:  Minimum of 5 ml bronchus washings/brushings.
  • Cerebrospinal fluid:  1 ml CSF minimum in a sterile plastic screw cap tube.
  • Gastric washings:  1 ml specimen minimum.
  • Sputum:  Minimum of 5 ml specimen.  A first morning specimen is recommended.
  • Stool:  Submit a pea size sample.  No preservative.
  • Tissue:  Submit a pea size sample. Can be placed in a small amount of saline to prevent drying out.
  • Urine:  Minimum of 50 ml of urine. The first morning specimen is recommended. 
  • Bone Marrow: Send using lithium heparin tubes.

Cause for rejection:

Serum is submitted for testing.

Processing:

  • Send to the laboratory immediately after collection.
  • Specimens are referred to Mayo Medical Laboratories, Rochester, MN for an AFB smear and culture.

Performed:

Smear:  Monday through Sunday. Mayo will contact Mercy Lab if positive.
Final:  8 weeks. Mayo will notify Mercy Lab if culture is positive prior to 8 weeks.

If tissue is submitted for testing, an additional charge will be assessed for processing.

If a bacteremia due to mycobacterium is suspected, see BLOOD CULTURE/ACID FAST ORGANISMS

Reference values:

AFB smear: No acid fast organisms seen.
                 If the smear is positive: Mycobacterium tuberculosis, Amplified Direct
                                                        Test is available at an additional charge.
AFB culture: No acid fast organisms isolated.
                  If the culture is positive for Mycobacterium: Antimicrobial
                             Susceptibility testing is available at an additional charge.
                             This testing has to be requested by the ordering location or
                             provider.

Method:

AFB smear: Auramine-Rhodamine Stain
AFB culture: Automated Detection plus 7H10-11 agar
Identification of AFB isolates by rapid methods: Nucleic Acid Probes, DNA Sequencing
                                                                    and Real-Time PCR, when appropriate.

CPT Code:

87206- Smear

87116- Culture, Mycobacterium

87149- Identification of Mycobacteria by nucleic acid probe (if appropriate)

87158- Identification of Mycobacteria by other methods (if appropriate)

87176- Tissue Processing (if appropriate)

 

 

TEST NAME

AEROBIC CULTURE /GRAM STAIN

See:Cultures are listed according to collection site. Order according to the source of the specimen.If there is no culture for the specific source, then order according to the type of culture i.e. body fluid, wound, etc.

 

POWERCHART NAME

ANAEROBIC CULTURE + SMEAR

MERCY TEST NAME

ANAEROBIC CLT/GS

MERCY LAB CODE

ANER

Order: Mark Anaerobe Culture/Gram Stain on order form.Write collection site on SOURCE line.
Specimen:

DO NOT USE AEROBIC TRANSPORTER!
A Port-A-Cul Cary Blair tube or Port-A-Cul anaerobic transport vial should be used. Both transport systems contain an indicator which will turn purple when oxygen is present.
DO NOT USE the transporter if the indicator is purple prior to opening the transporter.

Swab specimens:> Embed swab deeply into Port-A-Cul Cary Blair tube and cap tightly. Two swabs from the same specimen site should be submitted in one transport tube.

Fluid or pus aspirates:Inject specimen into Port-A-Cul vials. DO NOT inject air into vial.

Listing of acceptable and unacceptable specimens:

ACCEPTABLE specimens for anaerobic culture

  1. Exudates or aspirated pus from deep wounds/abscesses
  2. Surgical specimens
  3. Normally sterile body fluids
  4. Transtracheal aspirates
  5. Suprapubic urines from:
    1. Percutaneous bladder aspiration
    2. Nephrostomy tubes
    3. Suprapubic catheter
  6. Genital specimens ONLY as follows:
    1. Cul de sac aspiration
    2. Culdocentesis

UNACCEPTABLE specimens for anaerobic culture:

  1. Superficial wounds
  2. Specimens contaminated with intestinal flora ‑such as intestinal contents, colostomy sites, drainage from a pilonidal sinus, or bowel perforations.
  3. Feces/rectal swabs
  4. Throat/nasopharyngeal swabs
  5. Sputum/bronchoscopic specimens
  6. Vaginal/cervical swabs
  7. Midstream or catheterized urine specimens
Processing: Send at room temperature.
Comments:
  1. Specimens will be processed according to site.Only predominant anaerobes will be reported from cultures contaminated with oral, genital, or intestinal flora.
  2. Identification to genus and species will only be performed on isolates from blood, CSF and other normally sterile body fluids.
  3. Anaerobic susceptibility testing will not routinely be performed.Anaerobic susceptibility testing may be referred to Mayo Medical Laboratories, Rochester, MN. Contact Mercy Microbiology Lab (x7494) for information.
Method: Standard culture techniques
Reference values: No anaerobes isolated (applies to normally sterile body sites).Varies with site of collection.
Performed:

Gram stain: Next day 1st shift, unless ordered to be called stat with the specific phone number indicated.
Preliminary report: 2 - 4 days
Final report: 7 days

CPT Code:

87205 Gram Stain+
87075 Anaerobic Clt+

 

TEST NAME

BACTERIAL ANTIGENS CSF NEONATAL (< 1 week of age)

See: GBASG

 

TEST NAME

BACTERIAL ANTIGENS CSF PEDIATRIC (1 week to 17 years)

See: BACTAG

 

TEST NAME

BACTERIAL ANTIGENS CSF (18 years and older)

See: BACTAG

 

TEST NAME

BACTERIAL ANTIGENS URINE (< 1 week of age)

Test No Longer Available

 

TEST NAME

BACTERIAL ANTIGENS URINE (1 week to 17 years)

Test No Longer Available

 

TEST NAME

BACTERIAL ANTIGENS URINE (18 years and older)

Test No Longer Available

 

POWERCHART NAME

BACTERIAL ANTIGENS PANEL CSF

MERCY TEST NAME

BACTERIAL AG CSF

MERCY LAB CODE

BACTAG

Specimen: Minimum of 1.0 ml of CSF in sterile plastic screw-capped tube. Do NOT refrigerate the specimen during transport.
Comment:
  1. Orderable if desired by physician. Recommended for persons > 1 week old.
  2. Antigens tested: Haemophilus influenzae type B Neisseria meningitidis group B/E, coli K1, Neisseria meningitides groups A, C, Y, and W135, and Streptococcus pneumoniae. Includes Stroptococcus agalacitae (group B) on infants < 3 months old.
  3. Positive bacterial antigens results are called to the doctor or nursing unit.
  4. Antigens are not intended to replace bacterial culture. Please order Fluid Culture also.
Performed:

Same day, Monday - Sunday. Sent to Mayo. Mayo # 80366

Reference value: Negative
Method: Latex agglutination
CPT Code: 86403 x4 B Antigen

 

POWERCHART NAME

STREP GROUP B ANTIGEN CSF NEONATAL ORDER (<1 week of age)

MERCY TEST NAME

GROUP B STREP AG CSF

MERCY LAB CODE

GBSAG

Specimen: Minimum of 0.3 ml of CSF in sterile screw-capped container. Do NOT refrigerate the specimen.
Comment:
  1. Recommended for infants less than 1 week of age.
  2. Antigens tested: Stroptococcus agalacitae (group B)
  3. Positive bacterial antigens results are called to the doctor or nursing unit.
  4. Antigens are not intended to replace bacterial culture. Please order Fluid Culture also.
Performed:

Within 8 hours of receipt

Reference value: Negative
Method: Latex agglutination
CPT Code: 86403


POWERCHART NAME

CULTURE IDENTIFICATION BACTERIAL

MERCY TEST NAME

BACTERIAL ID RL

MERCY LAB CODE

MCID

Order:

1 Organism per request.
Mark OTHER under Microbiology Cultures on the order form & write Bacterial Identification.Write collection site on SOURCE line.
You must also complete a Reference Bacteria Examination Form for each organism.Indicate on reference bacteria form if susceptibility testing is desired.Send both forms.A copy of the Reference Bacteria Form is located in the Special Helps Section.

Specimen: Submit each organism to be identified on a separate plate.Colonies should be well isolated.
Comment: If requested, susceptibility testing will be performed, when appropriate, at a separate charge.
Processing: Send at room temperature.
Method: Standard culture techniques
CPT Code: 87077


POWERCHART NAME

BLOOD CULTURE

MERCY TEST NAME

BLOOD CLT

MERCY LAB CODE

BLC

Order:

Mark Blood Culture on order form.Write collection site on SOURCE line.

If yeast or fungus is suspected, see Blood Culture for Fungus for ordering and collection information.

If mycobacteremia (AFB,TB) is suspected, see Acid Fast Culture/smear for ordering and collection information.

Specimen:

Specimens must be collected using sterile techniques.

  1. Cleanse site with 70% isopropyl alcohol, followed by a 2 minute scrub with 2% tinctures of iodine solution.
  2. Remove & discard the plastic cover(s) from the culture bottle.
  3. Disinfect the rubber septum of each bottle with a 70% alcohol pad or iodine.
  4. Do not touch venipuncture site.Use a syringe or BacTALERT Blood Collection Adapter Set to obtain the blood cultures. Draw 1-4 ml for pediatric patients <5 yrs old. Draw 20 ml for all others.
  5. For syringe draws only: Place a new needle on the syringe.Put blood into blood culture bottles, using the following procedure:

    Pediatric (<5yrs):
    Inject 1-4 ml whole blood into the BacTALERTPediatric PF bottle (yellow).Avoid injecting air into the bottle. Invert to mix.

    Patients > 5 yrs old: Draw 20 ml blood.
    Inject 10 ml blood into the aerobic bottle (green) and 10 ml of whole blood into the anaerobic bottle (purple)
    Avoid injecting air into the bottles. Invert to mix.
  6. If the BacTALERT Blood Collection Adapter Set is used, draw 4ml of blood into the Pediatric PF bottle (yellow) OR 10ml of blood into each aerobic (green) and anaerobic (purple) bottle.
Comments:
  1. Three sets of blood cultures within a 24‑hour period is recommended.
  2. Culture is tested daily by continuous monitoring technology.
  3. Culture detects both aerobic and anaerobic bacteria.
  4. The aerobic and pediatric bottles used for older pediatric patients and adults contain a resin which will aid in the recovery of organisms if antimicrobial therapy was initiated before the culture was obtained.
  5. ALL POSITIVE BLOOD CULTURE RESULTS WILL BE PHONED TO THE PHYSICIAN OR NURSING PERSONNEL RESPONSIBLE FOR THE PATIENT.
  6. Susceptibility testing routinely will be performed on aerobic isolates. (With the exception of diphtheroids, Bacillus species, Viridans Streptococcus.)
Processing: Send at room temperature.
Performed:

Preliminary report: Daily
Final report: 5 days

Reference value: No growth
Method: Automated Continuous Monitoring Technology
CPT Code: 87040

TEST NAME

BLOOD CULTURE/ACID FAST ORGANISMS

MERCY TEST NAME

MISC MICROBIOLOGY

MERCY LAB CODE

MISM

Order: Mark OTHER under Microbiology Cultures on the order form & write Blood Culture Acid Fast.Write collection site on SOURCE line.
Specimen: Draw 20 ml blood into green top tubes (heparinized) using aseptic techniques. Invert tubes to mix.
Comments: Test is referred to Mayo Medical Laboratories, Rochester, MN.
Processing: Send refrigerated.
Performed: Positives are reported when detected.Negatives are reported in 60 days.Test is set up Monday thru Sunday.
Reference value: Negative.If positive, Mycobacterium will be identified.
Method:

AFB smear by fluorochrome staining
AFB culture by liquid radiometric assay and agars
Identification of Mycobacterial isolates by DNA probe and GLC

CPT Code: 87117

POWERCHART NAME

BLOOD CULTURE FUNGUS

MERCY TEST NAME

BLOOD CLT/FUNGUS

MERCY LAB CODE

BLF

Order: Mark OTHER under Microbiology Cultures on the order form & write Blood Culture/Fungus.Write collection site on SOURCE line.
Specimen:

Patients 6 yrs of age and older: 10 ml whole blood drawn into Isolator 10 tube.Short samples decrease the already low number of organisms.

Patients 5 years of age and under: 1.5 ml whole blood drawn into pediatric Isolator tube.

Specimens are to be collected using the following instructions:

  1. Disinfect the stopper of isolator tube with 10% pvp iodine.
  2. Cleanse and disinfect the venipuncture site, and maintain aseptic technique.
  3. Collect blood sample with the patient's arm in a downward position.
    (1.5 ml for patient 5 yrs and under)
    (10 ml for patients over 5 years.)
  4. Gently invert the tube 8 to 10 times immediately after collection.Incomplete mixing causes small clots to form.
    Clotted samples are unacceptable and must be redrawn.
  5. Transport promptly to the lab.
Processing: Send at room temperature.
Performed:

Preliminary report: 5 days
Final report: 4 weeks

Reference value: No fungus isolated.Positives will have fungus identified.
Method: Lysis centrifugation and standard culture techniques.
CPT Code: 87103

POWERCHART NAME

BODY FLUID CULTURE + SUSCEPTIBILITY + SMEAR DIRECT

MERCY TEST NAME

BODY FLD CLT/GS

MERCY LAB CODE

FLDC

Order: Mark Body Fluid Culture/Gram Stain on order form.Write collection site on SOURCE line.
Specimen:

Collect aseptically by needle aspiration or surgical procedure.
Submit all specimens in a sterile syringe with the needle discarded or sterile screw top container or tube. Deliver to the lab as soon as possible.

  1. CSF fluid: 1 ml minimum, placed in sterile screw capped tube.Do not refrigerate.
  2. Joint: 1 ml aspirate
  3. Pericardial: 1 ml aspirate
  4. Peritoneal: 1 - 2 ml aspirate
  5. Pleural: 5 - 10 ml aspirate
  6. Thoracic:5 - 10 ml aspirate
Cause for rejection:

Fluid injected into a CULTURETTTE is unacceptable.
A swab specimen is not adequate.

Processing:

Send all specimens at room temperature.
CSF specimens MUST NOT be refrigerated.

Comments:
  1. Recovery of microorganisms from these sites is dependent on the volume of specimen received.
  2. ALL POSITIVE CSF CULTURES/GRAM STAINS WILL BE PHONED TO PHYSICIAN/NURSING PERSONNEL RESPONSIBLE FOR THE PATIENT.
  3. Susceptibility testing will be performed on significant isolates.
Method: Standard culture techniques
Reference value: No growth (applies to normally sterile sites).
Performed:

Gram stain: Next day 1st shift, unless ordered to be called STAT with a specific phone number indicated.
Preliminary report: 1,2,3,4 days
Final report: 5 days

CPT Code:

87205 Gram stain+
87070 Body Fld Clt+


POWERCHART NAME

BORDETELLA PERTUSSIS PCR*

See: Pertussis PCR*


POWERCHART NAME

BRONCHIAL QUALITATIVE + SMEAR DIRECT OTHER

MERCY TEST NAME

BRONCH QAL CLT/GS

MERCY LAB CODE

BQAL

Order:

Mark OTHER under Microbiology Cultures on the order form & write Bronchus Culture/Qual.
Write from which bronchus the culture was collected on SOURCE line.

Specimen:

Minimum of 5 ml of bronchus washings collected through the inner chamber of the bronchoscope.Submit in a sterile plastic container with a tight - fitting lid.

Comments:
  1. Only significant respiratory isolates will be reported.
  2. Susceptibility testing will be performed on significant isolates.
Processing: Send at room temperature.
Performed:

Gram stain:Next day, 1st shift
Preliminary report: 1 day
Final report: 2 days

Reference value: Normal flora of the upper respiratory tract.
Method: Standard culture techniques
CPT Code:

87205 Gram stain+
87070 Bronch Clt+


POWERCHART NAME

CULTURE BRONCHIAL QUANTITATIVE + DIRECT SMEAR OTHER

MERCY TEST NAME

BRONCH QNT CLT/GS

MERCY LAB CODE

BQNT

Order: Mark OTHER under Microbiology Cultures on the order form & write Bronchus Culture/ Quant.Write from which bronchus on SOURCE line.This is to be ordered ONLY if the physician orders are for a quantitative or PSB bronchus culture.
Specimen: 1 ml protected specimen brushings (PSB) placed in 1 ml normal saline, in a sterile container with a tight fitting lid.Quantity of saline added is critical for accurate quantitation.
Comments:
  1. Includes quantitation in colony forming units (CFU/ml).
  2. Susceptibility testing will be performed on significant isolates.
Processing: Send at room temperature.
Performed:

Gram stain: Next day, 1st shift
Preliminary report: 1 day
Final report: 2 days

Reference value: No growth, or scant growth, normal flora.
Method: Standard culture techniques
CPT Code:

87205 Gram Stain+
87070 Bronch Clt+


POWERCHART NAME

CATHETER TIP CULTURE

MERCY TEST NAME

CATHETER TIP CLT

MERCY LAB CODE

CTC

Order: Mark OTHER under Microbiology Cultures on the order form & write Catheter Tip.Write site of insertion on SOURCE line.
Specimen:

2 inches of catheter tip.

  1. Aseptically remove the catheter tip from the patient.
  2. Using sterile scissors, cut the catheter 2 inches from the tip.
  3. Aseptically place catheter tip in a sterile PLASTIC CONTAINER with a tight-fitting lid.
Cause for rejection: 

Foley Tip catheters will not be accepted.
A culturette is not an acceptable transport device.

Comments:
  1. Quantitation will be reported for each isolate.>15 colony forming units (CFU) is considered significant.
  2. Susceptibility testing will be performed on significant isolates.
Processing: Send at room temperature.
Performed: Preliminary report: 1 day
Final report: 2 days
Reference values: No growth.Colony counts of >15 CFU are indicative of colonization.
Method: Standard culture techniques
CPT Code: 87070

POWERCHART NAME

CHLAMYDIA PROBE

MERCY TEST NAME

CHLAMYDIA SCREEN DNA PROBE

MERCY LAB CODE

CTGP

Specimen:

Urethral or cervical
A ProbeTec ET collection kit (gender specific) is available from the Microbiology Dept.  This kit contains a cleaning swab, collection swab and transport tube for females and a collection swab and transport tube for males. The transporter must be delivered to Mercy Lab within 6 days of collection and should be transported between 2-27 degrees celcius. The same tranporter can be used for GC DNA Probe testing.

Urine
15 – 20 mL of freshly voided urine. The patient should not have urinated for at least 1h prior to specimen collection. Store urine refrigerated @ 2-6°C and deliver the urine to Mercy Lab within 7 days of collection. If the urine was stored @ room temperature before delivery, please call the Mercy Microbiology Department for further instructions (Ext. 7494).

Cervical Specimen Collection:

Use the ProbeTec ET collection kit for females. Using the large cleaning swab provided in the kit, remove the excess mucous from the endocervix.  Discard the swab. Insert the smaller Female Endocervical Swab into the cervical canal and rotate vigorously for approximately 30 seconds.  Avoid touching the vaginal walls when withdrawing the specimen.  Place the swab into the transport tube and snap the swab off at the score mark. Tightly cap the tube and label with the patient’s name, date and time of collection. (Swab must be left in the transport tube.)  Transport at 2-27 degrees celsius, within 6 days of collection.

Urethral Specimen Collection (male):

Use the ProbeTec ET collection kit for males.  Patient should NOT have urinated one hour prior to specimen collection.  Insert a small Dacron swab 2-4 cm into the urethra.  Rotate the swab for 5 seconds and withdraw.  Place the swab in the transport tube and snap the swab off at the score mark. Tightly cap the tube and label with the patient’s name, date and time of collection. (Swab must be left in the transport tube.) Transport at 2-27 degrees celsius, within 6 days of collection.

Urine Collection:

             Collect specimen in a sterile, plastic, preservative-free specimen
             collection cup. The patient should not urinate for at least one
             hour prior to collection of specimen. Patient should collect the
             first 15-20 mL (maximum 60 mL) of a voided urine (the first
             part of stream, not mid-stream). Tightly cap the urine and label
             with the patient’s name, date and time of collection. Store the
             urine in the refrigerator (2-6°C) until transport to Mercy Lab.
             Transport refrigerated, within 7 days of collection.

EYE SPECIMENS ARE NOT APPROVED FOR TESTING WITH THIS METHOD.  SEE: CHLAMYDIA TRACHOMATIS, DIRECT SMEAR  (Eye & Nasopharyngeal)

 
Cause for rejection:
  • Transport tubes that are received without collection swabs inside.
  • Transport tubes that have expired.
  • Transport tubes received with a swab different from the one provided in the collection kit.
Specimen collected from a site other than cervical, male urethral or urine
Comment:
  • In the case of suspected child abuse, culture is the only recommended procedure. See: Chlamydia Trachomatis Culture
     
    Results are directly dependent on specimen quality.  Inadequate or improperly collected specimens may give false negative results.
Processing: BD ProbeTec ET Transport tubes: Store at 2-27 degrees celsius
Urine: Store at 2-6 degrees celsius
Performed: Monday, Wednesday, and Friday with 0800 cutoff.
Reference value: Negative for Chlamydia trachomatis
Method: Strand Displacement Amplification (SDA)
CPT Code: 87491

TEST NAME

CHLAMYDIA PNEUMONIAE BY PCR

MERCY TEST NAME

CHLAMYDIA PNEUMONIAE BY PCR

MERCY TEST CODE

MISM

Comment: Contact Microbiology Department for collection and ordering instructions. Sent to University Hygienic Laboratory.
Need UHL PCR Detection Patient History form to be filled out and sent with specimen.This form is located in the Special Helps Section.

 

TEST NAME

CHLAMYDIA TRACHOMATIS CULTURE

MERCY TEST NAME

CHLAMYDIA TRACHOMATIS CULTURE

MARCY TEST CODE

MISM

Comment:

Contact Microbiology Department for collection and ordering instructions. Test to be used in suspected child abuse cases.

Sent to Viromed #008565

 

TEST NAME

CHLAMYDIA TRACHOMATIS DIRECT SMEAR

MERCY TEST NAME

CHLAMYDIA TRACHOMATIS DIRECT SMEAR

MERCY LAB CODE

MISM

Comment:

Contact Microbiology Department for collection and ordering instructions.

Requires Syva Microtrak slide. Most commonly used for infant conjunctival specimens. Can be used as supplemental testing for verifying the presence of C. Trachomatis on genital specimens. Sent to Mayo. Mayo #8883

Method: Direct Fluorescent Antibody.
CPT Code: 87207

 

TEST NAME

CLOSTRIDIUM DIFFICILE CYTOTOXIN STOOL

MERCY TEST NAME

CLOST DIFF TOXIN

MERCY LAB CODE

CTOX

Order: Mark CLOSTRIDIUM DIFFICILE TOXIN (under Direct Stool Tests) on order form.
Specimen: Minimum of 2 grams of a random stool. Submit in a clean container with a tight fitting lid. If the patient has had an enema, the specimen must be collected at least 48 hours post enema (any type).  Deliver to the laboratory as soon as possible, or refrigerate for up to 72 hours.  specimen may be frozen for longer storage.  Specimens preserved in Cary Blair (orange stool culture transporter) are also acceptable.
Comment:

Patient should be passing 5 or more liquid to soft stools specimens in 24 hours to be tested for Clostridium difficile toxin.  Formed Stools are not indicative of Clostridium difficile associated disease, and will not be tested.  Not to be used for children <2 yrs, as up to 50% of healthy infants are carriers.

This test detects Clostridium difficile toxins A and B but does not distinguish betweenthe two.  Useful as an aid in diagnosis of antibiotic associated pseudomembraneous colitis.

Only submit 1 specimen in a 24 hour period.

Deliver to laboratory as soon as possible, or refrigerate up to 72 hours.

Performed: Daily 0900, 1200 and 1500
Reference value: Clostridium difficile toxin A and B not detected.
Method:   Rapid Immunoassay
CPT Code: 87324

 

POWERCHART NAME

CRYPTOCOCCAL ANTIGEN SCREEN CSF (MAYO)

MERCY TEST NAME

CRYPTO SCN CSF*

MERCY LAB CODE

CRYPTS

Specimen: 1.0 ml CSF.  Submit in a sterile plastic screw cap tube.  Refrigerate the specimen, unless culture is also ordered.  Culture should be transported ambient.
Comments:
  1. Detects the presence of Cryptococcus neoformans in CSF.
  2. A concurrent Cryptococcus culture is strongly recommended.
Processing: Send refrigerated to Mayo #86166
Performed: Send to Mayo.  Mayo #86166.  If reactive, Mayo will reflex #28072 Cryptococcus Antigen CSF.
Reference value: Negative
Method:

86166-Enzyme Immunoassa (EIA)

28072- Latex Aggluition

CPT Code: 87327 (86403 if appropriate)

POWERCHART NAME

CRYPTOCOCCAL CULTURE + DIREST SMEAR CSF

MERCY TEST NAME

CRYPTO CLT/GS

MERCY LAB CODE

CRYP

Order:

Mark OTHER under Microbiology Cultures on the order form & write Cryptococcus CLT/GS.Write CSF on SOURCE line.
Specimen:1 ml CSF minimum.Submit in sterile plastic screw cap tube.

Processing: Send at room temperature.Do not refrigerate!
Performed: Gram Stain: Daily1600 cutoff
Preliminary report: 1 and 2 weeks
Final report: 3 weeks
Reference value:

Direct Gram Stain: No yeast seen.

Culture: No Cryptococcus neoformans isolated.
Method: Culture:Standard culture techniques
CPT Code:

87205 Gram Stain+
87102 Yeast Clt+

 

TEST NAME

CRYPTOSPORIDIUM

See: Giardia/Cryp Rapid


TEST NAME

CSF CULTURE         

See: Body Fluid Culture/Gram Stain

 

POWERCHART NAME

CULTURE VIRUS RESPIRATORY

MERCY TEST NAME

RESP VIRUS*

MERCY LAB CODE

VRSRSP

Order: Mark VIRUS CULTURE on order form. Write in collection site in the SOURCE line.
Specimen:

Throat Swabs in a culture transport medium, send refrigerated

Sputum, 0.5 mL, send refrigerated in a screw cap vial.

Tissue, (Lung, Etc.), send refrigerated in a screw cap vial containing 1 - 2 mls sterile saline or multi-microbe medium (M5).

Mumps testing, swab specimens for Mumps must clearly indicate "MUMPS" on request form to insure proper handling and test setup.

Other acceptable sources include Bronchioalveolar Lavage, Bronchial Washings, Tracheal Aspirate or Secretions, and Nasal Swabs/Washings.

***SOURCE IS REQUIRED

Comments: All rapid (16 hour incubation) shell vial cell culture assay will be inoculated on specimens designated for herpes simplex virus (HSV) or cytomeglaovirus (CMV) detection.
Processing: Deliver to the lab immediately or refrigerate specimen. Send to Mayo.  Mayo # 50014.
Performed: Test setup daily, Final report 2 weeks.
Reference Value:

Negative

If positive, virus is identified.

Method: Cell culture
CPT Code:

87252 Tissue Culture Inoculation

87254 Shell vial (if appropriate)

87176 Homogenization, tissue ( if appropriate)

 

POWERCHART NAME

CULTURE VIRUS NON-RESPIRATORY

MERCY TEST NAME

NON RESP VIRUS*

MERCY LAB CODE

VRSNR

Order: Mark VIRUS CULTURE on order form. Write in collection site in the SOURCE line.
Specimen:

Body Fluid or Cerebrospinal Fluid (CSF),send 1.0 mL in a screw cap vial.
Ocular or Rectal swabs in culture transport medium.
Stool, 5 - 10g, send refrigerated in a screw cap stool container.
Tissue (Brain, Colon, Kidney, Liver) send refrigerated in a screw cap vial with 1 - 2 mls of sterile saline or multi-microbe media (M5).
Urine (Mumps Only), send 0.5 mL of urine refrigerated in a screw cap vial.

***SOURCE IS REQUIRED

Comments: All rapid (16 hour incubation) shell vial cell culture assay will be inoculated on specimens designated for herpes simplex virus (HSV) or cytomeglaovirus (CMV) detection.
Notes:

1.  Urine, blood, and bone marrow specimens for CMV are not acceptable for viral culture. See Mayo test #81240 CMV by Rapid PCR

2.  Dermal or lesion specimens are not acceptable for viral culture.  See Mayo #82048 HSV and VZV DNA detection by PCR,Dermal.  (Link to Herpes Zoster)

3.  Genital specimens order HSVPCR for Herpes simplex or Mayo #81241 Varicella Zoster Virus

Processing: Deliver to the lab immediately or refrigerate specimen. Send to Mayo.  Mayo # 50015.
Performed: Test setup daily, Final report 2 weeks.
Reference Value:

Negative

If positve, virus is identified.

Method: Cell culture
CPT Code:

87252 Tissue Culture Inoculation

87254 Shell vial (if appropriate)

87176 Homogenization, tissue (if appropriate)


TEST NAME

Dermal HSV/VZV by DNA Detection by PCR

See: Herpes Zoster


POWERCHART NAME

DERMATOPHYTE CULTURE

MERCY TEST NAME

DERMATOPHYTE CLT

MERCY LAB CODE

DERMCT

Order: Specify site when ordering.See page 1-2 for ordering help.
Specimen: Skin scrapings, hair or nail clippings.
Comment: Label DTM agar with the patient name, date, and time of collection, and source.
Do not cover agar Slant with label.
Processing: Specimen to be collected in dermatology office and inoculated directly to DTM agar.
Performed: Preliminary Report: 1 week.
Final Report: 2 weeks.
Method: Standard Culture Technique.
CPT Code: 87101


TEST NAME

DIRECT GRAM STAIN

See: Gram Stain Direct

 

POWERCHART NAME

EAR CULTURE

MERCY TEST NAME

EAR CLT

MERCY LAB CODE

EARC

Order: Mark EAR CULTURE on order form.Check right or left on order form.
Specimen: Cleanse the external canal.Collect exudate or scrapings of ear canal.Submit in a double culturette.
Comments: Susceptibility testing will be performed on significant isolates.
Haemophilus, Neisseria, & Streptococcus pneumoniae will be screened for penicillin resistance.
Processing: Send at room temperature.
Performed: Preliminary report: 1,2,3,4 days
Final report:5 days

Reference value: No growth (commensal skin flora may be present).
Method: Standard culture techniques
CPT Code: 87070

POWERCHART NAME

ENTEROVIRUS RNA DETECTOR

MERCY TEST NAME

ENTEROVIRUS BY PCR*

MERCY LAB CODE

ENTRPC

Specimen: 1.0 ML CSF - Cerebral Spinal Fluid
0.5 ML CSF – minimum volume
Comment: Specimens grossly contaminated with blood may inhibit the PCR and produce false negative results.
Processing:
  1. DO NOT centrifuge specimen.
  2. Send specimen refrigerated in a screw-capped, sterile plastic vial.Maintain sterility and forward promptly.
Performed: Mayo 80066.
Method: Real-TIME Polymerase Chain Reaction (PCR).
CPT Code: 87798

 

POWERCHART NAME

EYE CULTURE OTHER

MERCY TEST NAME

EYE CLT

MERCY LAB CODE

EYEC

Order: Mark EYE CULTURE on order form.Check right or left on order form.
Specimen:
  1. Conjunctivitis:
    Touch the involved area with a sterile swab moistened with sterile saline.Ideally, inoculate directly to the appropriate media.However, the swab may be transported in a Culturette.
  2. Corneal scrapings:
    The cornea may be anesthetized with 0.5% proparacaine hydrochloride, but better results are obtained if the scrapings are collected without the use of a topical anesthetic.A topical anesthetic may have an antimicrobial effect.Scrape the base and margin of the ulcer.Inoculate these scrapings directly to the appropriate media.
Comment:
  1. The organisms involved in eye infections are often fastidious in nature.
  2. Susceptibility testing will be performed on significant isolates.
Processing: Send at room temperature.
Performed: Preliminary report: 1,2,3,4 days
Final report: 5 days
Reference value: No growth (commensal skin flora may be present).
Method: Standard culture techniques
CPT Code: 87070

POWERCHART NAME

FECAL LEUKOCYTES (WBC FECES) SMEAR

MERCY TEST NAME

FECAL LEUKOCYTES

MERCY LAB CODE

FL

Order: Mark FECAL LEUKOCYTES (under Direct Stool Tests) on order form.
Specimen:

1 gm random stool specimen, submit in a clean container with a tight-fitting lid. Deliver to Lab within 1 hour of collection.

If specimen cannot be delivered within 1 hour of collection:

  1. Use Parasafe (O&P) vial or Parapak 10% Formalin vial for transport. Add enough stool specimen to bring the liquid level to the fill line in the vial.
  2. DO NOT OVERFILL! Mix specimen thoroughly in preservative. Formed specimens must be broken up in the vial.
  3. Specimens in preservative must be tested within 5 days of collection.
Processing: Send at room temperature.
Performed: Monday-Friday1400 cutoff
Reference value: No WBC seen.
Method: Direct microscopy of stained slide.
CPT Code: 89055
   

POWERCHART NAME

CULTURE IDENTIFICATION FUNGUS

MERCY TEST NAME

FUNGAL ID

MERCY LAB CODE

FNID

Specimen: Submit each yeast or fungus to be identified on a separate plate.
Comment: 1 yeast or fungus per request.Mark "OTHER" under Microbiology Cultures on the order form and write "Fungal Identification".Write collection site on source line.
Processing: Send at room temperature.Seal edges of plates before transporting.
Method: Standard Culture Techniques.
CPT Code: 87102

POWERCHART NAME

FUNGUS CULTURE + DIRECT PREP

MERCY TEST NAME

FUNGUS CLT/DIR PR

MERCY LAB CODE

FUNG

Order: Mark FUNGUS CULTURE on order form.Write collection site on SOURCE line.
Specimen:

To prevent aerolization, specimens must be submitted in a sterile container with a TIGHT fitting screw top lid.Culturettes must be capped snugly. Submit according to the following guidelines:

  1. Body fluid:5 ml minimum.
  2. Bone marrow aspirate:0.2 - 0.3 ml in heparinized syringe.
  3. Bone marrow biopsy:Transport in a sterile screw-capped container with 1 ml sterile normal saline.
  4. Bronchus washings/brushings:5 ml minimum.
  5. Corneal scraping or donor cornea:Ophthalmologist is to collect and plate.Contact Microbiology for media.
  6. Ear:Swab in Culturette.
  7. Hair: Hair and base of shaft in screw-capped container.
  8. Nail cuttings
  9. Skin scrapings
  10. Sputum: 5 ml minimum.
  11. Stool: Freshly passed specimen.
  12. Tissue: Submit in a sterile plastic container with a tight fitting lid. Add 1‑2 ml of sterile saline,no preservative, to the container to prevent drying of the specimen.
  13. Urine: 25-50 ml of clean catch, first morning specimen.
    Catheterized and suprapubic specimens are also acceptable.
Performed:

Direct preparation: 1 day
Preliminary report: 2,3 weeks
Final report: 4 weeks

Reference value:

Direct exam: No yeast or hyphal elements seen.
Culture: No fungus isolated

Method:   Standard culture techniques
CPT Code:

87205 Gram Stain+
87102 Fungus Clt+


POWERCHART NAME

GC PROBE

MERCY TEST NAME

NEISSERIA GONORRHEA SCREEN by DNA PROBE

MERCY LAB CODE

GCGP

Specimen:

Urethral or cervical
A ProbeTec ET collection kit (gender specific) is available from the Microbiology Dept.  This kit contains a cleaning swab, collection swab and transport tube for females and a collection swab and transport tube for males. The transporter must be delivered to Mercy Lab within 6 days of collection and should be transported between 2-27 degrees celcius. The same tranporter can be used for Chlamydia DNA Probe testing.

Urine
15 – 20 mL of freshly voided urine. The patient should not have urinated for at least 1h prior to specimen collection. Store urine refrigerated @ 2-6°C and deliver the urine to Mercy Lab within 7 days of collection. If the urine was stored @ room temperature before delivery, please call the Mercy Microbiology Department for further instructions (Ext. 7494).

Cervical Specimen Collection:

Use the ProbeTec ET collection kit for females. Using the large cleaning swab provided in the kit, remove the excess mucous from the endocervix.  Discard the swab. Insert the smaller Female Endocervical Swab into the cervical canal and rotate vigorously for approximately 30 seconds.  Avoid touching the vaginal walls when withdrawing the specimen.  Place the swab into the transport tube and snap the swab off at the score mark. Tightly cap the tube and label with the patient’s name, date and time of collection. (Swab must be left in the transport tube.)  Transport at 2-27 degrees celsius, within 6 days of collection.

Urethral Specimen Collection (Male):

Use the ProbeTec ET collection kit for males.  Patient should NOT have urinated one hour prior to specimen collection.  Insert a small Dacron swab 2-4 cm into the urethra.  Rotate the swab for 5 seconds and withdraw.  Place the swab in the transport tube and snap the swab off at the score mark. Tightly cap the tube and label with the patient’s name, date and time of collection. (Swab must be left in the transport tube.) Transport at 2-27 degrees celsius, within 6 days of collection.

Urine Collection:

             Collect specimen in a sterile, plastic, preservative-free specimen
             collection cup. Patient should collect the first 15-20 mL (maximum 60
             mL) of a voided urine (the first part of stream, not mid-stream).
             Tightly cap the urine and label with the patient’s name, date and time
             of collection. Store the urine in the refrigerator (2-6°C) until transport
             to Mercy Lab. Transport refrigerated, within 7 days of collection.

 
Cause for rejection:
  • Transport tubes received without collection swabs inside.
  • Transport tubes that have expired. 
  • Transport tubes received with a swab different from the one provided in the collection kit.
  • Specimen collected from a site other than cervical, male urethral, or urine
Comment:
  • In the case of suspected child abuse, culture is the only recommended procedure.  See: GC Culture.

    Results are directly dependent on specimen quality.  Inadequate or improperly collected specimens may give false negative results.
Processing: BD ProbeTec ET Transport tubes: Store at 2-27 degrees celsius
Urine: Store at 2-6 degrees celsius.
Performed: Monday, Wednesday, and Friday with an 0800 cutoff.
Reference value: Negative for Neisseria gonorrheae
Method: Strand Displacement Amplification (SDA)
CPT Code: 87591

POWERCHART NAME

GC CULTURE

MERCY TEST NAME

GC SCRN

MERCY LAB CODE

GC

Order: Mark GC CULTURE on order form.Write collection site on SOURCE line.
Specimen:

Need special Thayer-Martin Bi-plate agar.

SPECIMEN COLLECTION:

CERVICAL/VAGINAL:
Obtain under direct visualization with a speculum. Lubricants and jellies should be avoided. Speculum may be moistened with warm water. Inoculate onto agar plate according to instructions below.
URETHRAL:
Should not be collected until at least 1 hour after urinating. The external discharge may be used to inoculate the media. If no discharge is present, collect a specimen using a flexible shaft swab.(Calgiswab or Mini‑Tip Culturette).Insert the swab approximately 2 cm into the urethra and gently rotate before withdrawing.Inoculate onto agar plate according to instructions below.
ANAL:
Collect using a swab.Obtain from the crypts just inside anal ring, or by anoscopy to collect mucopurulent exudates directly. Inoculate onto agar plate according to instructions below.
PHARYNGEAL:
Collect using a swab.Obtain from the tonsillar regions and posterior pharynx. Inoculate onto agar plate according to instructions below.
INOCULATION:
  1. Thayer-Martin plates are available from the Microbiology Department.
  2. Keep plate refrigerated until needed.       
  3. Plate MUST be at room temperature before inoculation.Neisseria gonorrhoeae is very fastidious and will not survive on cold media.
  4. One collection site per plate.
  5. Inoculate a Thayer‑Martin plate by gently rolling the swab over the agar surface in a zig-zag pattern.Inoculate one specimen source per plate.
  6. Label the media side (not lid) of the plate with the patient's first and last name, the site and date of collection.
  7. Place the plate in the provided Bio‑Bag. Seal the bag. Crush the CO2 generator. Leave bag in an upright position (zip lock upright) for at least 30 seconds.
  8. Keep at room temperature or 35°C. Do not refrigerate or freeze.
Comment:

Beta lactamase testing is done routinely on isolates of Neisseria gonorrhoeae.

Can be used as supplemental testing for verifying the presence of GC on genital specimen

Processing: Send at room temperature.DO NOT REFRIGERATE inoculated media.
Performed: Final report:2 days
Reference value: No Neisseria gonorrhoeae isolated.
Method: Standard culture techniques
CPT Code: 87081

POWERCHART NAME

GENITAL CULTURE

MERCY TEST NAME

GENITAL LOW CLT

MERCY LAB CODE

GENL

Order: Mark GENITAL TRACT LOWER CULTURE on order form.Write collection site on SOURCE line.
This culture will NOT determine the presence of Neisseria gonorrhoeae.

For presence of N. gonorrhoeae, see GC culture.
Specimen:

Vulva, Vagina, Cervix, or Urethra.
Collect using a double swab Culturette.

Comments:

  1. This culture screens for the presence of Group B Beta Streptococcus, Staphylococcus aureus, Gardnerella vaginalis, and a predominance of yeast.
  2. Susceptibility testing will routinely be performed on significant isolates of Staphylococcus aureus.
Processing: Send at room temperature.
Performed:

Gram Stain: 1st shift
Final report: 2 days

Reference value: Normal flora of the lower genital tract.
Method: Standard culture techniques.
CPT Code: 87070

TEST NAME

GIARDIA ASSAY, RAPID

See: Giardia/Cryp Rapid

 

POWERCHART NAME

GIARDIA+CRYPTOSPORIDIUM ANTIGEN

MERCY TEST NAME

GIARDIA/CRYP RAPID

MERCY LAB CODE

GLCP

Performed: Daily 1400 cutoff.
*Not more than one specimen in 24 hr period.
Specimen: 2 grams feces.Fresh ok if delivered within 1 hour, otherwise, preserve specimen in formalin or Cary Blair transporter. Parasafe not acceptable. If using a transporter, add specimen to bring liquid up to line on vial. Cap tightly and mix well. Transport at room temperature.
Cause for rejection: Specimens collected within 7 days of barium or bismuth enema are not acceptable. Specimens should not be contaminated with toilet water or urine.
Comment: Detects Giardia and Cryptosporidium antigens.Tests are not available separately.
Method: Rapid immunoassay.      
Reference value: Not detected.
CPT Code:

87328 Cryptosporidium
87329 Giardia


POWERCHART NAME

GRAM STAIN

MERCY TEST NAME

GRAM STAIN DIRECT

MERCY LAB CODE

GRAM

Order: Mark OTHER under Microbiology Cultures on the order form & write GRAM STAIN.Write collection site on SOURCE line.
Gram stain is included in Body Fluid Culture, Respiratory culture, Wound Culture and Anaerobic culture.

Specimen:

Any source.
Fluid specimens: Submit in a sterile screw top container.
Other specimens:Submit in a sterile plastic container with a tight‑fitting lid or submit in a double swab Culturette.

Comment: This test is used as the screening test for yeast in vaginal specimens when specifically noted on the order.
Processing: Send at room temperature.
Performed: Next day, 1st shift, unless ordered STAT with a specific phone number indicated.
Reference value: Varies by site of collection
Method: Direct microscopy of stained slide
CPT Code: 87205

TEST NAME

GROUP A STREP SCREEN (THROAT)

See: Strep Screen Group A (Throat)


POWERCHART NAME

GROUP B STREP CULTURE

MERCY TEST NAME

GRP B STREP CLT

MERCY LAB CODE

GBOB

Order:

Mark GROUP B STREP CULTURE (OBSTETRICS) on order form. Only 1 order is needed for both specimens. Write collection site(s) on source line.

Specimen:

Both vaginal and rectal specimens are recommended.
Preferred Specimen: Separate culturett from each site, labeled with specimen source.  One double culturette with rectal/vag swab is acceptable.

Comment:
  1. Culture screens for Group B Streptococcus only and is recommended for screening obstetric patients for carrier status.
  2. MIC testing is not routinely performed. Please contact the Microbiology lab if patient is at high risk for anaphylaxis due to Penicillin allergy.
Processing: Send at room temperature.
Performed: Preliminary report: 1 day
Final report: 2 days
Reference value: No Group B Streptococcus isolated.
Method: Standard culture techniques
CPT Code: 87081

TEST NAME

HELICOBACTER SCREEN

MERCY TEST NAME

HELICOBACTER SCN

Order: Use pink Pathology Specimen Form for ordering.Write on request form "Look for Helicobacter".
Specimen:

Gastric mucosal biopsy, 2-3 mm in diameter.
Biopsy should be from normal looking tissue. Patients should not have taken antibiotics or bismuth salts for at least 3 weeks prior to endoscopy/ biopsy.Place specimen in 10% formalin.

Processing: Send to Lab immediately.
Method: Histological stain
Reference value: No Helicobacter identified.
Performed: 1 week
CPT Code: 87072


POWERCHART NAME

HERPES SIMPLEX PCR

MERCY TEST NAME

HERPES BY PCR*

MERCY LAB CODE

HSVPCR

Specimen:  
Genital Specimens: Collect cervix, rectum, urethra, vagina, or other genital sites on a routine culturette (culture swab).  Send refrigerated.  DO NOT USE CALCIUM ALGINATE OR TRANSPORT SWABS CONTAINING GEL.
Dermal/Ocular specimens: Collect lesion, dermal or ocular specimen on a routine culturette (culture swab).  Send refrigerated.  DO NOT USE CALCIUM ALGINATE OR TRANSPORT SWABS CONTAINING GEL.
Body Fluid or Spinal Fluid: Send 0.5 ml of fluid in a sterile, screw-capped container.  Send refrigerated.
Respiratory Specimens: Send 1.5 ml of bronchial washing, bronchoalveolar lavage, nasopharyngeal aspirate or washing, sputum, or tracheal aspirate in a sterile, screw-capped container.  Send refrigerated.
Throat Swabs: Collect the specimen on a routine culturette (culture swab).  Send refrigerated. DO NOT USE CALCIUM ALGINATE OR TRANSPORT SWABS CONTAINING GEL.
Tissue:  Send tissue from a brain, colon, kidney, liver, lung, etc. in a sterile, screw-capped container containing 1.0 to 2.0 ml sterile saline.  Send refrigerated.
Processing: Send refrigerated to Mayo.Mayo #80575.
Performed:

Monday – Saturday
Results available 3 days from collection.

Method: Real-Time Polymerase Chain Reaction
CPT Code: 87529
Reference Value: Negative (Positive results will be reported as herpes simples type 1 DNA detected or herpes simples type 2 DNA detected.)

 

TEST NAME

HERPES ZOSTER

MERCY TEST NAME

DERMAL, Herpes Simplex Virus & Varicella Zoster Virus, DNA Detection by PCR

MERCY LAB CODE

CMIS

Order: Write in Dermal HSV/VZV Mayo 82048 under Microbiology Cultures and indicate specimen source on SOURCE line.
Specimen: Collect lesion and dermal specimens using culture transport swab.Refrigerate specimen immediately.M4 or M5 transport media is also acceptable.
Cause for rejection: Calcium alginate tipped swabs, wooden swabs, or culture transport media containing gel is not acceptable.
Comment: Indicate specimen source.
Processing: Send refrigerated to Mayo.Mayo #82048.
Performed: 1 day, test setup Monday through Sunday.
Reference value:

Negative.
If positive HSV1, HSV2, or VZV will be reported.

Method: Detection of HSV and VZV by LightCycler PCR.
CPT Code:

87529 HSV1 and HSV2
87798 VZV


POWERCHART NAME

INFLUENZA A and B RAPID

MERCY TEST NAME

INFLUENZA A and B, RAPID

MERCY LAB CODE

INFLU

Specimen: Nasal wash/aspirate. Specimen must be kept refrigerated and tested within eight hours of collection.
Comment: Test is very specimen dependent. False negatives may be reported if the specimen is inadequate or poorly collected.Immediately transport to Laboratory. Test differentiates between Influenza A and Influenza B.
Performed: Within 8 hours of collection.Available stat.
Reference value: Negative for Influenza A and B.
Method: Lateral Flow Immunoassay.
CPT Code: 87804


POWERCHART NAME

KOH PREP OTHER

MERCY TEST NAME

KOH PREP

MERCY LAB CODE

KOH

Order:

Mark OTHER under Microbiology Cultures on the order form & write KOH Preparation.Write collection site on SOURCE line.
Order "Gram Stain Direct" if the specimen is genital tract and "yeast" is specified.

Specimen: Scrapings, hair, nails, and tissue.Submit in a sterile plastic container with a tight‑fitting lid.
Comment: A concurrent fungus culture is strongly recommended as a confirmatory test.
Processing: Send at room temperature
Performed: Next day, 1st shift
Reference value: No yeast or hyphal elements seen.
Method: Direct microscopy
CPT Code: 87220

POWERCHART NAME

CULTURE LEGIONELLA

MERCY TEST NAME

LEGION CULTURE

MERCY LAB CODE

LEGCS

Order:

Mark Other under Microbiology cultures on the order form and write Legionella Culture.  Write collection site on the SOURCE line.

Specimen: Bronchial washings, broncho-alveolar lavage, sputum, pleural fluid, or fresh lung tissue.  Maintain sterility and refrigerate. DO NOT freeze specimens.
Cause for rejection: Frozen or ambient specimens. Do not transport in culturettes.
Processing: Send refrigerated to Mayo #50008 /# 8113.
Performed: Smear – Test setup Mon- Fri.
Culture - 14 days.
Reference value:

Smear DFA: Negative for Legionella species.

Culture:  No Legionella pneumophila isolated.

Method: Smear - Direct Fluorescent antibody tests.
Culture – Conventional culture with fluorescent antibody for positive cultures.
CPT Code:

Smear 87300 x2
Culture 87081 and 87140/identification if needed. 87176 Tissue processing if appropriate.

 


TEST NAME

MYCOPLASMA CULTURE*

Test No Longer Available


TEST NAME

MYCOPLASMA PNEUMONIAE DNA PCR*

MERCY TEST NAME

MYCOPLASMA PNEUMONIAE DNA PCR*

MERCY LAB CODE

MYCPCR

Specimen:

Bronchalveolar lavage (BAL), bronchial wash, sputum, or respitory spceimen in M4 media.

Processing: Send specimen refrigerated. Mayo 91429
Method: Polymerase Chain Reaction (PCR)
CPT Code: 87581

 

TEST NAME

NASOPHARYNX CULTURE

See: Respiratory (Upper) Culture/Gram Stain


TEST NAME

NEISSERIA GONORRHOEAE

See: GC Culture/GC DNA Probe

 

TEST NAME  NORWALK-LIKE VIRUS ANTIGEN
MERCY TEST NAME NORWALK-LIKE VIRUS ANTIGEN MERCY TEST CODE CMIS
Specimen: 1-2 gm stool specimen in a sterile container.  Freeze specimen.
Processing: Send frozen to May.  Mayo # 91366. Preformed by Focus Diagnostics.
Performed: Monday's and Wednesday's
CPT Code:
87449


TEST NAME

NOSE CULTURE

See: Respiratory (Upper) Culture/Gram Stain


POWERCHART NAME

OVA AND PARASITE

MERCY TEST NAME

OVA/PARASITES

MERCY LAB CODE

OVA

Order:

Mark OVA & PARASITES (under Direct Stool Tests) on order form.
Mark type of specimen: liquid, soft or formed.
This will NOT detect Cryptosporidium.See "Cryptosporidium" if this test is desired.

Specimen:

5-10 gm stool specimen.
Specimen delivered within 1 hour of collection: 5-10 gm of feces submitted in a clean container with a tight-fitting lid.

if specimen will not be delivered within 1 hour of collection:
  1. Transfer enough stool specimen to bring liquid level up to the fill line indicated on the Parasafe preservative vial.
    DO NOT OVERFILL! Mix thoroughly. Pieces should be pea size or less.
  2. All formed specimens must be broken up in the preservative.
  3. Indicate consistency of specimen on vial (liquid, soft, or formed).
  4. Specimens in preservative must be tested within 5 days of collection.
Cause for rejection: Specimens collected within 7 days of a barium or bismuth enema are not suitable for examination. Specimens should not be contaminated with toilet water or urine.
Processing: Send at room temperature.
Comments:
  1. A concentrate and trichrome stain will be performed.
  2. It is recommended that stool specimens be collected and submitted on three consecutive days due to the intermittent nature of some parasites.
Performed: Monday - Friday 1000cutoff
Reference value: No ova or parasites seen.
Method: Direct microscopy
CPT Code:

87177 Ova & Parasites+
87209 Stain Special+


POWERCHART NAME

PERTUSSIS PCR

MERCY TEST NAME

PERTUSSIS PCR*

MERCY LAB CODE

BPC

Specimen:

Nurse to collect.
Obtain kits from Microbiology.

  1. Collect one nasopharyngeal swab from each of the nares of the patient (2 swabs) by passing the sterile thin wire through the nares of the patient until resistance signifies the swab has reached the posterior wall of the pharynx. Rotate axially and hold for 30-60 seconds or until coughing occurs or the patient resists.
  2. Place both swabs in the empty tube provided and cut the wires off.  Place the lid on the tube securely.  Write the patient's name, date, and time of collection on the tube that contains the swabs.                                                                                   NOTE:  UHL will accept one swab for testing but the ideal specimen is to have 2 swabs collected and sent.
  3. Complete the patient information form and return with the specimens to Mercy Lab.
Comment: Reference Labs may obtain collection kits from the University Hygienic Laboratory if they would like to mail them themselves.
Processing: Specimens are sent to University Hygienic Lab, Iowa City.
Performed: Run Monday and Thursdays at UHL (typically)
Reference value: Negative for B. Pertussis.
Method: PCR
CPT Code: 99001

 

POWERCHART NAME

PINWORM EXAM

MERCY TEST NAME

PINWORM PREP

MERCY LAB CODE

PIN

Order: Mark OTHER under Microbiology Cultures on the order form & write PINWORM PREP.
Specimen:

Collect